DE19535472A1 - Electrical ring heating member e.g. for heating components with round cross-section - Google Patents

Electrical ring heating member e.g. for heating components with round cross-section

Info

Publication number
DE19535472A1
DE19535472A1 DE19535472A DE19535472A DE19535472A1 DE 19535472 A1 DE19535472 A1 DE 19535472A1 DE 19535472 A DE19535472 A DE 19535472A DE 19535472 A DE19535472 A DE 19535472A DE 19535472 A1 DE19535472 A1 DE 19535472A1
Authority
DE
Germany
Prior art keywords
ring
radiator
heater
section
heating member
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE19535472A
Other languages
German (de)
Inventor
Eberhard Haerter
Wolfgang Reinacher
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tuerk and Hillinger GmbH
Original Assignee
Tuerk and Hillinger GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tuerk and Hillinger GmbH filed Critical Tuerk and Hillinger GmbH
Priority to DE19535472A priority Critical patent/DE19535472A1/en
Publication of DE19535472A1 publication Critical patent/DE19535472A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/54—Heating elements having the shape of rods or tubes flexible
    • H05B3/58—Heating hoses; Heating collars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/72—Heating or cooling
    • B29C45/74—Heating or cooling of the injection unit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/86—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the nozzle zone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/86—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the nozzle zone
    • B29C48/865—Heating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Resistance Heating (AREA)

Abstract

An electrical ring heating member comprises a spirally shaped tubular heating member and a surrounding metal mantle. The spirally shaped heating member (1) and the surrounding mantle (2) are conically shaped and the tubular heating member spiral (1) is pressed flat on its inside.

Description

Die Erfindung betrifft einen elektrischen Ringheizkörper gemäß dem Oberbe­ griff des Patentanspruchs 1.The invention relates to an electric ring heater according to the Oberbe handle of claim 1.

Derartige Heizkörper dienen zum Beheizen von im Querschnitt kreisrunden Gegenständen, wie zum Beispiel von Spritzdüsen in Kunststoffverarbeitungs­ maschinen.Such radiators are used for heating circular in cross section Objects, such as spray nozzles in plastic processing machinery.

Um die erforderliche gute Wärmeübertragung zwischen dem Heizkörper und dem zu beheizenden Gegenstand sicherzustellen, wird der Ringheizkörper, wie bei­ spielsweise das DE-GM G 94 04 438 offenbart, mit axialen, oder auch radial angeordneten Verschraubungen auf dem zu beheizenden Gegenstand verspannt.To the required good heat transfer between the radiator and the Ensure the object to be heated, the ring radiator, as in for example, the DE-GM G 94 04 438 discloses, with axial, or radial arranged fittings clamped on the object to be heated.

Diese Ausführungsart ist jedoch relativ aufwendig, was sich auch beim Aus­ wechseln des Heizkörpers ungünstig auswirkt. Außerdem ist nicht ganz aus­ geschlossen, daß sich der Ringheizkörper bei sehr hohen Betriebstemperaturen auf dem zu beheizenden Gegenstand lockert infolge der starken Wärmedehnung des Heizkörpers.However, this embodiment is relatively complex, which is also the case changing the radiator has an unfavorable effect. Besides, it is not entirely out concluded that the ring heater at very high operating temperatures loosens on the object to be heated due to the strong thermal expansion of the radiator.

Der vorliegenden Erfindung lag daher die Aufgabe zugrunde, einen Ringheiz­ körper zu schaffen, der auch bei hohen Betriebstemperaturen sicher und satt auf dem zu beheizenden Gegenstand sitzt und der mit Werkzeugen einfachster Art, also ohne großen technischen Aufwand auf dem zu beheizenden Gegenstand befestigt und damit auch leicht ausgewechselt werden kann.The present invention was therefore based on the object of a ring heater to create bodies that are safe and full even at high operating temperatures sits on the object to be heated and the easiest with tools Art, so without much technical effort on the object to be heated attached and can be easily replaced.

Diese Aufgabe wird durch die kennzeichnenden Merkmale des Patentan­ spruchs 1 gelöst.This object is achieved by the characterizing features of the patent spell 1 solved.

Infolge der konischen Ausbildung der Heizköperwendel und des diese umgeben­ den Mantels sitzt der Heizkörper satt auf dem zu beheizenden Gegenstand. As a result of the conical design of the radiator coil and the surrounding the jacket, the radiator sits snugly on the object to be heated.  

Zur Befestigung dieses Ringheizkörpers auf dem zu beheizenden Gegenstand wird der Heizkörper, nach vorhergehender Erwärmung, auf den, entsprechend konisch ausgebildeten Gegenstand aufgeschoben, wobei sich, abschließend zu diesem Vorgang, die Ringklammer auf dem Gegenstand festspannt.To attach this ring heater to the object to be heated the radiator, after previous heating, on the, accordingly postponed conical object, being, finally, to this process, the ring clamp clamps on the object.

Der Gegenstand der Erfindung ist in einem Ausführungsbeispiel in der Zeichnung dargestellt und nachfolgend beschrieben.The object of the invention is in one embodiment in the drawing shown and described below.

Es zeigenShow it

Fig. 1 den Ringheizkörper im Längsschnitt und Fig. 1 shows the ring radiator in longitudinal section and

Fig. 2 eine Draufsicht auf den Heizkörper gemäß Fig. 1. FIG. 2 shows a top view of the heating element according to FIG. 1.

Der erfindungsgemäße Ringheizkörper besteht aus einer, insgesamt konisch gestalteten Rohrheizkörperwendel 1, die von einem, ebenfalls konischen Me­ tallmantel 2, dessen beiderseitigen Ränder umgebördelt sind, umschlossen ist. Der Querschnitt des die Wendel 1 bildenden Rohrheizkörpers 3 ist recht­ eckig, gegebenenfalls mit abgerundeten Ecken. Diese Querschnittsform ergibt eine besonders große Anpreßfläche zwischen dem Heizkörper und dem zu beheizen­ den Gegenstand. Dieser Vorteil wird noch weiter vergrößert, dadurch daß die Rohrheizkörperwendel 1 innen glatt verpreßt wird.The ring heater according to the invention consists of an overall conical tubular heater coil 1 , which is surrounded by a, also conical Me tallmantel 2 , the edges of which are flanged on both sides, is enclosed. The cross section of the tubular heater 3 forming the coil 1 is quite angular, possibly with rounded corners. This cross-sectional shape gives a particularly large contact surface between the radiator and the object to be heated. This advantage is further increased by the fact that the tubular heating element coil 1 is pressed smooth on the inside.

Die Stromzuführung zum Ringheizkörper erfolgt über einen, mit dem Ende des des Rohrheizkörpers 3 verbundenen, durch eine Ausnehmung 7 im Metallmantel herausgeführten Anschluß 4.The current supply to the ring heating element takes place via a connection 4 , which is connected to the end of the tubular heating element 3 and is led out through a recess 7 in the metal jacket.

Um auch bei extrem hohen Erwärmungen des Heizkörpers eine Lockerung des­ selben zu verhindern, kann an dem, im Durchmesser kleineren Ende des Ring­ heizkörpers eine federnde Ringklammer 5, beispielsweise durch Punktschweißung 6 befestigt werden. Diese Ringklammer greift dann federnd über den zu beheizenden Gegenstand und fixiert den Heizkörper zusätzlich auf dem Gegen­ stand.In order to prevent the radiator from loosening even when the heating element is extremely hot, a resilient ring clamp 5 , for example by spot welding 6 , can be fastened to the radiator with a smaller diameter end of the ring. This ring clip then resiliently engages over the object to be heated and also fixed the radiator on the object.

Zur Regelung des Ringheizkörpers können Thermoelemente bekannter Art an beliebig wählbaren Stellen sowohl innerhalb als auch außerhalb des Rohr­ heizkörpers, d. h. zwischen dem Mantel 2 und der Heizkörperwendel 1 vorgesehen werden. To regulate the ring heater, thermocouples of a known type can be provided at arbitrary locations both inside and outside the tubular heater, ie between the jacket 2 and the heater coil 1 .

Abschließend wird noch hinzugefügt, daß die Konizität des Ringheizkörpers beliebig wählbar ist, d. h. sie kann jeweils an die Gegebenheiten angepaßt werden.Finally, it is added that the taper of the ring heater is freely selectable, d. H. it can be adapted to the circumstances will.

Claims (4)

1. Elektrischer Ringheizkörper, bestehend aus einem wendelförmig gestal­ teten Rohrheizkörper und einem diesen Heizkörper umschließenden Metall­ mantel, dadurch gekennzeichnet, daß der wendelförmige Rohrheizkörper (1) und der diesen umschließende Metallmantel (2) konisch geformt sind und die Rohrheizkörperwen­ del (1) an ihrer Innenseite glatt verpreßt ist1. Electric ring radiator, consisting of a helically shaped tubular heater and a metal jacket surrounding this radiator, characterized in that the helical tubular heater ( 1 ) and this surrounding metal jacket ( 2 ) are conically shaped and the Rohrheizkörperwen del ( 1 ) on it Inside is smoothly pressed 2. Ringheizkörper gemäß Anspruch 1, dadurch gekennzeichnet, daß an dem im Durchmesser kleineren Ende des Ringheizkörpers eine, mit der Durchlaßöffnung des Heizkörpers korrespondierende, federnde Ring­ klammer (5) befestigt ist.2. Ring heater according to claim 1, characterized in that at the smaller diameter end of the ring heater, a corresponding to the passage opening of the radiator, resilient ring bracket ( 5 ) is attached. 3. Ringheizkörper gemäß Anspruch 1, dadurch gekennzeichnet, daß der Querschnitt des die Heizkörperwendel bildenden Rohrheiz­ körpers (3) rechteckig ist.3. Ring heater according to claim 1, characterized in that the cross section of the tubular heater forming the tubular heater body ( 3 ) is rectangular. 4. Ringheizkörper gemäß Anspruch 3, dadurch gekennzeichnet, daß der Rechtquerschnitt des Rohrheizkörpers (3) abgerundete Ecken aufweist.4. Ring heater according to claim 3, characterized in that the right cross section of the tubular heater ( 3 ) has rounded corners.
DE19535472A 1995-09-23 1995-09-23 Electrical ring heating member e.g. for heating components with round cross-section Withdrawn DE19535472A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19535472A DE19535472A1 (en) 1995-09-23 1995-09-23 Electrical ring heating member e.g. for heating components with round cross-section

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19535472A DE19535472A1 (en) 1995-09-23 1995-09-23 Electrical ring heating member e.g. for heating components with round cross-section

Publications (1)

Publication Number Publication Date
DE19535472A1 true DE19535472A1 (en) 1997-03-27

Family

ID=7773019

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19535472A Withdrawn DE19535472A1 (en) 1995-09-23 1995-09-23 Electrical ring heating member e.g. for heating components with round cross-section

Country Status (1)

Country Link
DE (1) DE19535472A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19746556A1 (en) * 1997-10-22 1999-05-06 Hotset Heizpatronen Zubehoer Heating element for making injection moulding products
DE19746311A1 (en) * 1997-10-21 1999-05-06 Hotset Heizpatronen Zubehoer Heating element for nozzle of pressure injection molding machine
DE10124960A1 (en) * 2001-05-21 2002-11-28 Watlow Gmbh Heating element for heating pipes or nozzles in industrial manufacturing has heating coil that sits in reflector tube with radial play and is attached in one section to reflector tube inner wall
EP1361035A1 (en) * 2002-05-06 2003-11-12 P.C.R. S.R.L. Apparatus and method for the extrusion of plastic material, in particular for thermoplastic material to be recycled and product so obtained

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1357110A (en) * 1970-08-25 1974-06-19 Eltra Kg Leicht & Trambauer Heating devices
DE3249924C2 (en) * 1982-06-05 1989-03-23 E.G.O. Elektro-Geraete Blanc U. Fischer, 7519 Oberderdingen, De Heating element with cylindrical wall
DE3916963A1 (en) * 1989-05-24 1990-11-29 Conti Elektra Heizelemente Spiral tubular element for electric immersion water heater - has plane upper surface and lower surface secured by solder to bed of shallow tray
DE9404438U1 (en) * 1994-03-16 1994-05-11 Hotset Heizpatronen und Zubehör GmbH, 58511 Lüdenscheid Electrically heated cylindrical body

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1357110A (en) * 1970-08-25 1974-06-19 Eltra Kg Leicht & Trambauer Heating devices
DE3249924C2 (en) * 1982-06-05 1989-03-23 E.G.O. Elektro-Geraete Blanc U. Fischer, 7519 Oberderdingen, De Heating element with cylindrical wall
DE3916963A1 (en) * 1989-05-24 1990-11-29 Conti Elektra Heizelemente Spiral tubular element for electric immersion water heater - has plane upper surface and lower surface secured by solder to bed of shallow tray
DE9404438U1 (en) * 1994-03-16 1994-05-11 Hotset Heizpatronen und Zubehör GmbH, 58511 Lüdenscheid Electrically heated cylindrical body

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19746311A1 (en) * 1997-10-21 1999-05-06 Hotset Heizpatronen Zubehoer Heating element for nozzle of pressure injection molding machine
DE19746311C2 (en) * 1997-10-21 2000-05-31 Hotset Heizpatronen Zubehoer Electric heating cartridge
DE19746556A1 (en) * 1997-10-22 1999-05-06 Hotset Heizpatronen Zubehoer Heating element for making injection moulding products
DE10124960A1 (en) * 2001-05-21 2002-11-28 Watlow Gmbh Heating element for heating pipes or nozzles in industrial manufacturing has heating coil that sits in reflector tube with radial play and is attached in one section to reflector tube inner wall
EP1361035A1 (en) * 2002-05-06 2003-11-12 P.C.R. S.R.L. Apparatus and method for the extrusion of plastic material, in particular for thermoplastic material to be recycled and product so obtained

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OP8 Request for examination as to paragraph 44 patent law
8130 Withdrawal